It became apparent to Watson and Crick after completing their model that a DNA molecule could carry a vast amount of hereditary information in its
A) side groups of bases.
B) variety of phosphate groups.
C) sequence of bases.
D) phosphate-sugar backbone.
E) different five-carbon sugars.
Answer: C) sequence of bases.
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The electrical stimulus for each human heartbeat begins in the ____ at the _____ node.
A. right atrium, sinoatrial. B. left atrium, sinoatrial. C. right atrium, atrioventricular. D. right ventricle, atrioventricular. E. pulmonary trunk, sinoatrial.
The color of petunia flower can be changed from red to blue by altering the pH of the soil. This is an example of
A. norm of reaction. B. the environment influencing the genotype. C. codominance. D. incomplete dominance. E. range of inheritance.
Which blood test must be interpreted based on gender?
a. BUN b. lipid profile c. ALB d. AMT e. A1C
A forest community consists of not only the trees and shrubs, but also the animals and microorganisms.
Answer the following statement true (T) or false (F)